We’ve all heard that there are 500 new features in Windows Phone 7.5 AKA Mango and a whole bunch of them have been all over the internet. Well I’ve just upgraded to Mango (How see here 
) so here’s what I’ve noticed straight away:
In messaging, it now colours your messages a different shade than the other person…makes it easier to see who said what at a glance
If you’ve scrolled down the live tiles on the front screen…press the <—Back button and it zooms you back to the top. Simple but nice!
Hold the Search button when you’re on the Lock Screen and BOOM, it opens Bing (Can be turned off in settings)
Bing Audio works really well
Windows Phone jumplists now for applications. So if you have over a certain amount, you get the letters to help navigate through like in contacts…very handy!
When in the camera, press anywhere on the screen to take a picture.
Camera settings such as Flash on/off, image quality etc all persist after you exit the camera, so they’re still there next time. That is awesome as this was a big annoyance for me…
These are all great features that have jumped out at me pretty much straight away.
These is one feature that I’ve been looking forward to for ages that seems to be a disappointment though…adding tracks to a playlist on the device.
It’s easy to add 1 track to a playlist but I cannot figure out how to get another one on there! Also, if you’re playing a song that’s part of an album and you select “add to playlist” it appears to add the entire album.
Hopefully someone will work this out and/or future update will make it more intuitive
Well that’s me done for now but rest assured, you’ll almost certainly see more of these posts from me over the coming days/weeks!
Cloudy with a chance of Licensing 
I was really let down by the playlist feature. You’d think this would be bread & butter to them considering their experience with the Zune devices.
The way I do them is via the Zune Client on the PC. Although, you can add single tracks to the “Now Playing” playlist then save that.